Secret Template applies secrets successfully but stage fails

[awesomohsin]

Hi Im using the secret_template option in the drone-gke plugin but running into a weird situation where the secrets are applied successfully on my kubernetes cluster but the stage returns an error saying.

Error (kubectl output redacted): Error: exit status 1

Here are screenshots after running once and twice

Heres the plugin configuration

• name: deploy
  image: nytimes/drone-gke
  environment:
  TOKEN:
  from_secret: GOOGLE_CREDENTIALS
  SECRET_DOCKER_CFG:
  from_secret: KUBERNETES_PULL_SECRET
  ... all the other secrets stored in drone ..
  settings:
  cluster: clustername
  expand_env_vars: true
  namespace: ${DRONE_BRANCH}
  zone: us-west1-a
  template: kubernetes/deployment-template.yml
  secret_template: kubernetes/secret-template.yml

The secret template looks like this

apiVersion: v1
kind: Secret
metadata:
name: secret1
type: Opaque
data:
user_name: {{.SECRET_}}

apiVersion: v1
kind: Secret
metadata:
name: secret2
type: Opaque
data:
user_passt: {{.SECRET_}}

apiVersion: v1
kind: Secret
metadata:
name: secret3
type: Opaque
data:
user_id: {{.SECRET_}}

Any pointers as to what may be happening?